Polypropylene film offset plate and manufacturing method thereof
A polypropylene and offset printing plate technology, applied in the preparation, printing, coating and other directions of the printing surface, can solve the problems of increasing the consumption of wood resources, rising prices, and high user costs, and achieves solutions to damage to the human body, low cost, The effect of improving the utilization of offset plates
Inactive Publication Date: 2016-10-26
YINGKOU SPECIAL PAPER IND
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Problems solved by technology
The second is that the paper base plate is made of wood pulp. With the shortage of wood resources, not only the price is rising, but also the consumption of wood resources is increased.
Method used
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[0033] 1 Preparation of resin slurry
[0034] Add 140kg of purified water into the reaction kettle, stir and heat to raise the water temperature to 27°C; then sprinkle 15kg of PVA directly into the vortex while stirring, and mix to a uniform slurry; then heat to 93°C with steam, Stir at constant temperature for 30 minutes; finally add 25kg of purified water, cool to room temperature while stirring, and set aside.
[0035] 2 Preparation of paint colorant
[0036] Add 68kg of purified water and 3.5kg of ethanol into the container, then put 0.1kg of pigment (methylene blue or rose red) into the alcohol water, stir and disperse evenly, store for more than 24 hours, and set aside.
[0037] Preparation of 3-layer coating
[0038] Add 160kg of resin slurry into the reaction kettle, stir and heat to 95°C, and stir for 35 minutes. After taking it out, add it to the colloid mill together with 120kg of purified water and 70kg of color material, and then add 80kg of high-grade clay (pas...
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Abstract
The invention relates to offset plate paper and a manufacturing method thereof, in particular to a polypropylene film offset plate and a manufacturing method thereof. The polypropylene film offset plate is manufactured through the procedures of preparation of water soluble resin slurry, preparation of coating pigment, preparation of plate layer coating, a coating process, cutting, packaging and the like. A polypropylene film replaces a wood pulp paper-based plate, and not only are wood resources saved, but also the printing number can be increased by 5 times or more. Through double-faced coating of the polypropylene film, double-faced platemaking printing can be achieved, and the utilization rate of the offset plate is increased. The water soluble resin slurry replaces an organic solvent, and the problems of human body harm and environment pollution caused by harmful gas are solved. The manufacturing method of the polypropylene film offset plate is simple, the cost is low, and the polypropylene film offset plate is ideal.
Description
technical field [0001] The invention relates to an offset printing plate and a manufacturing method thereof, in particular to an offset printing plate made with a polypropylene film as a base plate and a water-soluble resin slurry as a solvent and a manufacturing method thereof. Background technique [0002] For a long time, the zinc oxide offset printing plate paper used for light printing at home and abroad has been made of paper base, using toluene, xylene, methyl methyl ester, methyl butyl ester and other raw materials to prepare organic solvent-based adhesives, and then combined with zinc oxide, etc. Formulated into paint, coated to make paper. This kind of master paper, one is that the solvent used contains harmful ingredients to the human body, and the volatilization of harmful gases in the production process will cause physical harm to the operator and pollute the surrounding environment. Since these organic solvents are flammable and volatile, special care should b...
Claims
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IPC IPC(8): B41N3/03C09D129/04C09D7/12
CPCB41N3/03C08K3/00C08K3/22C08K3/26C08K3/30C08K3/32C08K3/346C08K2003/2296C08K2003/265C08K2003/3045C09D7/61C09D129/04
Inventor 张翠琴
Owner YINGKOU SPECIAL PAPER IND